4 Reasons why should you waterproof your Chimney?

Posted by Steven Page on January 25th, 2021

On stormy days, many home holders are inside where it's quite dry. Maybe unwinding on the couch with a reading decent book or messing around with the children to keep them involved. But, outside your home, it’s a fight, and mother nature quite often wins.

Water is the chimney's mortal enemy. Also, it's not just in the rain. The beating hail, downpour, and even buildup can wear out the chimneys. 

Over the long haul, dampness will relax the uncovered blocks and mortar. You may even notice bits of blocks and mortar on the ground.

In more serious cases, whole blocks can tumble from the smokestack that can eventually make the structure breakdown. As the permeable stonework absorbs the dampness, it extends during freezing. 

Hence, this cycle makes small breaks in the blocks permitting water to spill inside the smokestack when it defrosts. Water breaks can particularly be dangerous. It can harm your pipe liner, rust the damper, metal segments, and increase the danger of fire and carbon monoxide harming.

Waterproofing your chimney will help prepare it to win the fight against Mother Nature. Let’s look at the top reasons for waterproofing a chimney.

Before waterproofing your chimneys, it is fundamental to make any vital chimney repair. Else, customers are simply saving it's a generally debilitated condition that can prompt more broad redesigns later on.

Accomplished chimneys mason will perform fold highlighting, fix spalling, and missing blocks. If chimneys have broad damages, it might require revamping or a total renovation.

Start with a Clean Chimney

When the chimney fixes are finished, the following stage is to clean the chimneys. Start with disposing of the dirt, grime, green growth, shape, and different pollutants before the water sealant application. Soil, organisms, and microorganisms are blemish, however, they can harm the stonework. 

Utilize low strain to wash the blocks as the high weight can harm them. At the point when the masonry is spotless and dry, it is ready for waterproofing. One of the many benefits of a waterproof basement is that it protects against mold and mildew that can harm your belongings.

Choosing and Applying the Water Repellent

There are a variety of water sealants available with various qualities. Yet, not all of them are best for every chimney. If you don’t apply properly, stack be defenseless against water harm. It is enthusiastically recommendable that you talk with a certified chimney proficient in your general vicinity. 

It is the most ideal approach to guarantee you are utilizing the correct waterproofing item for the chimney. They will utilize a modern strength recipe and assure its application with a five to ten-year guarantee.

You should re-apply the water sealant before the guarantee terminates to keep up its water assurance. Having services from a professional can save you from quick damages.


The flashing on your smokestack is the metal bit situated between the rooftop and stack; it goes about as a watertight seal. Further, introduce flashing appropriately. If the blazing is appropriately introduced, the metal might start to rust. Indeed, even a little break can make colossal issues. 

Hire only expert chimney professionals. These specialists will spot dampness issues and other related harm when needed.


The chimneys are, perhaps, the most important part of a home. You may not consider its importance unless they start troubling you. Therefore, it is a good option to waterproof your chimney for numerous benefits. 

Waterproofing is a preventive measure. At the point when harm or weakening (holes, voids, breaks, missing mortar, and so on) exists in a brickwork structure, the fireplace should be fixed. Therefore, it is recommendable to clean the chimneys before applying waterproofing material.

Steven Page

About the Author

Steven Page
Joined: December 1st, 2020
Articles Posted: 2

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